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fixed to avoid the message 'main::ALRM_handler: mysql_update(): Illegal division by zero at /usr/lib/monitorix/mysql.pm line 448'

This commit is contained in:
Jordi Sanfeliu 2013-02-04 12:02:51 +01:00
parent 89f4b897ca
commit 828ce9501d
1 changed files with 5 additions and 1 deletions
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6
lib/mysql.pm
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@ -445,7 +445,11 @@ sub mysql_update {
unless !$innodb_buffer_pool_pages_total;
$connections_usage = $connections_usage > 100 ? 100 : $connections_usage;
$qcache_hit_rate = $qcache_hits / ($qcache_hits + $Com_select) * 100;
if($qcache_hits + $Com_select == 0) {
$qcache_hit_rate = 0;
} else {
$qcache_hit_rate = $qcache_hits / ($qcache_hits + $Com_select) * 100;
}
$temp_tables_to_disk = $created_tmp_disk_tables / ($created_tmp_disk_tables + $created_tmp_tables) * 100;
$rrdata .= ":$queries:$slow_queries:$tcache_hit_rate:$qcache_usage:$opened_tables:$connections_usage:$connections:$table_locks_waited:$key_buffer_usage:$innodb_buffer_pool_usage:$com_select:$com_commit:$com_delete:$com_insert:$com_insert_s:$com_update:$com_replace:$com_replace_s:$com_rollback:$aborted_clients:$aborted_connects:$bytes_received:$bytes_sent:$qcache_hit_rate:$com_stmtex:$temp_tables_to_disk:0:0:0:0:0:0:0:0:0:0:0:0";